Lock.



C. V. DOYLE.

LOCK. APPLICATION FILED FEB. N11915- RENEWED FEB. 25.71918.

1,281,536. Patented 0G; 15; 1918;,

UNITED STATESJRATENT, oFFIoE.

CLARENCE v. norm, or NEw YoIm,

LOCK.

Specification of Letters Patent.

Patented= Oct..15, 1.918.

Application filed February 11, 1915, Serial No. 7,467. Renewed February 25, 1918. Serial No. 219,151.

To all whom it may concern:

Be it known that I, CLARENCE V. Donn, a citizen of the United States, residing at the borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification, reference being had therein to the accompany-ing drawing.

My invention relates to improvements in looks, and more particularly has reference to and is illustrated in the accompanying drawings in its application to a recording lock, that is to say, a lock which discloses when it is operated. I'Vhere a lock of this character and anordinary lock are used upon the same door both locks are opened in order to gai n access. The proprietor and his employee or employees usually have the key to the regular or usual form of lock and the other lock employed in such a case, but the recording lock usually can be opened by the manufacturer W110 supplies the same and is adapted to record the time of the day or night when the same is locked or unlocked. This is accomplished by a record and clock mechanism,

the cotipcration of which is such that when the recording lock is turned either way a mark is made upon the record which is moved by the clock mechanism so that the exact time is indicated on the record. This invention does not in any way relate to the clock or record making mechanism of the recording lock and has nothing whatsoever to do with the usual form of lock which. is can ployed therewith, but has to do with a means I for preventing the time lock being operated while. the usual form of lock is locked.

Referring to said drawings, Figure l illustrates in front elevation with parts" broken away an application of my invention as ap plied to a door hung in a wall orpartition; Fig. 2 is an enlarged "iew looking from left to right into the jamb socket within Whichthe. bolt of the recording lock is engaged. Fig.3 is an enlarged view, partly broken away, looking from the outside of the door at the bolt of the recording lock. Fig. 4 is a cross section on the line kl-4 of'Fig. 3. Fig. 5 is an edge View of the keeper illustrating a modification; Fig. 6-is a sectional view illustrating another modification; andFig. 7 is a sectional view illustrating the primary lock 1 locked.

The bolt 51 of therecording lock 66 it willbe' observed on. reference to Figs. 3 and 4 is provided with a recess, hollow, or cut to the depth of the recess 7in the bolt 5 so that the thickness of the body of the bolt at the recessis about equal to the distance be tween the end of the pin 9 or base 11 and the end of the pin 10. In order therefore to enable the bolt 5 of the-recording lock to enter or leave the keeper or jamb socket 8, it is necessary that the door be open a suitable distance. In such position of the door the bolt 5 may be advanced by the key 13 or may be withdrawn. If the bolt 5 is'shot within the keeper or socket 8 tl1e door may then be closed owing to the fact that the pin 9 may enter the recess 7 of the bolt. When said parts are in such position the bolt 14 of the usual form of look 15 may beturned by the key 16' into the keeper or housing 17. Of course the keeper or housing 17 .for the bolt 14 must be mounted upon the jamb or partition 12 in such a manner that the bolt 14 enters the keeper only when the door is fully closed. When the door islocked in this position by the usual. form of lock 15 it will be readily understood that it is not possible to unlock the recording look 6 because the pin. 9, within the recess 7 of the bolt 5 prevents the withdrawal of the bolt by the key 13.

It will be understood that, instead of using the pin '10, the width of the interior portion of the keeper 8 may be reduced, so that the distance between the ,wall 19 of the same, as shown in Fig. 2, and the end of pin 9, is substantially equal to the width of the words, the wall 19, looking at Fig. 2, if brought forward as .far as the inner end of the pin 10, will make it unnecessary to employ said pin. Furthermore, the recess 7 in bolt 5 may, of course, be formed upon the outside of the bolt instead of upon the inside of the bolt, as illustratedin Fig. 6. In such case the pin 9 may be eliminated and the bolt 5, as illustrated in Fig. 5. In other 1 distance between-the lefthand wall 20 of the interior keeper '8 and the end of pin 10 opto prevent operation of said bolt, and the door would have to be fully closed in order to operate the recording lock and the door must be slightly opened to permit the recess 7 in the exterior of bolt 5 to receive pin 10, as indicated in dotted lines in Fi (5. With the door thus slightly opened boFt 14 of the primary lock may enter the keeper 17 as illustrated in Fig. 7 It is therefore necessary tov unlock the usual form of lock 15 first so as to allow the door 18 to be fully closed in order to permit bolt 5 to clear the pin 10. The recording lock 6 cannot be locked after the bolt14 has been locked, as it will of course be understood that the recording lock bolt 5 can not be shot while the door is open because said bolt is then opposed by pin 10.

In accordance with my invention, when the usual form of lock 15 is locked the bolt 5 of the recording lock can not be operated to lock it because the pin 9 or 10 opposes said bolt, nor to unlock it because such pin will then be in the 7 and the material of the bolt at the outer end of the recess will oppose said pin.

It has been known that employees have left the keys of recording locks with irresponsible persons, with instructions to oper ate said locks at specified times, and such persons have followed such instructions,

'whereby such employee has been enabled to leave the place unguarded by the recording lock for a period of time. He thereby gained the advantage of'leavmg before the proper closing hour or of arriving later'than the proper op ning hour, whereas the recording lock would indicate that it had been operated by the employee, at the proper time, although, as a matterof fact, it was operated by an unauthorized person. A particular advantage of my invention is to deter an employee fronrintrusting the. key of the recording lock to an unauthorized person with instructions to operate the recording look at a spe -ified time Said employee would not be lilgely to leave both locks unlocked until said specified time, but would at least lock the door by means of the usual lock 15. lVhe'n the employee has so locked the door, the aforesaid unauthorized person cannot operate the bolt 5 of the recording lock, and

- the employee would not be likely to intrust the keys of both said locks to said unauthorized person. llenoe, my invention providesa safeguard against the operation of recording locks by unauthorized persons for the purpose ofdeceiving employers.

Various modifications may be made with: out departing from the spirit of the inventions as claimed.

" I claim: z p

1. The combination with a primar lock adapted to fasten a door in its close posilion. of a secondary lock for said door, the

secondary lock cn'lbodying means to prevent the release of said secondary locking mechanism when said door is in its fully closed posltion, said means being releasable by an initial opening movement of the door.

2. The combination with a prima lock adapted to fasten a door in its close position, of a secondar lock having a bolt adapted when advanced to fasten said door in its closed position, said secondary lock including means to prevent the retraction of @aid bolt when said door is fully closed, said means being releasable by an initial opening movement of the door.

3. The combination with a primary lock adapted to fasten a door in its closed osition, of a secondary lock having a bolt a apted when advanced ,to fasten a door in its the advance or retraction of the bolt of said secondary look when the door is fully closed, said means being engageable bv final closing movement of the door and releasable by initial opening movement of the door.

5. The combination with a primary lock adapted to fasten a door in its closed position, of a secondary look also adapted to fasten a door in its closed position, said secondary lock including means to prevent the advance of the bolt of said secondary look when the door is held in it closed position by the primary lock, said means being disengageable by initial opening movement of the door, after the primary lock is unlocked.

6. The combinationwith a locking bolt for a door, of a keeper adapted to receive said bolt, the bolt having a recess, and the keeper having a projection engageablefin said recess by final closing movement of said door, to dog the bolt, and disengageable from said recess by initial opening move-.

.ment of the door, to permit the retraction of 8. The combination a primary lock for a door, adapted iwhen engagedtohold said door in fully elosed '.po sition, of afsecondary lock for the same," having a bolt adapted-when advanced to fasten said door, and means toprevjent. thefretr of said bolt when said door is held fully closed by the primary lock, said means being releas able by initial opening movement of the door after the primary lock is unlocked.

9; The combination with a prin'iary lock, adapted when engaged to fasten door in its closed position, of time recording lock,

the locking .i'nechanism of said tlI118 IGCOI'C1' "for a door, of a keeper having a socket adapted to receive said bolt. the bolt having a recess in one side thereof, and'ithe keeper having a pin ploiccting from one side there of in the socket and engageable in said recase when the bolt is advanced into the socket andithe door is fully closed, and disengageable from said recess by initial opening movement of the door.

11. The combinatii'm with a primary lock adapted when "operated to fasten a door in its closed position, of recording lock also adapted to fasten-the door in its closed position, said recording lock comprisin means which render it ino erative when t e door upon which said locks are mountedis closed, both of said locks being arranged simultanethe bolt and keeper of saidrecording lockously to retain the door locked. l 12. ,The combination with a primary look adapted when operated to fasten a door in its closedposition, of a recording look also adapted to fasten the door in its closed position, said recording lock comprisin means which render it inoperative when t e door upon which said locks are mountedis'closed and the primary lock is locked, both of said locks being arranged simultaneously to re tain the door locked. I i

13. The combination with aprimary lbck; adapted when advanced to fasten a door in its closed position, of a recording lock comprising means, which render it, inoperative when the )rimary lock is locked both of said locks eing arranged simultaneously to retain the door locked. a

14. The combinationwith a primary "lock adapted when advanced to fasten a door in its closed posit-ion, of a 'recol'ding lock having a keeper, and means coactive between which render the mechanism thereof inoper- .ing mechanism adapted to fasten a its locked position, of a recording lock comdoor.

comprising means which render it inopera' tive when the door is in its locked position and the primary lock is locked.

16. The combination with a primary look"- ing mechanism adapted when operated to fasten a door in its locked position, of a recording look also adapted tofasten the door in its locked position, said recording lock comprising means which prevent the advance or retraction of the bolt of said re cording lock when the door, is in its locked position and the primary lock is looked, both of said locks being arranged simultaneously to retain the door locked. j i

17. The combination with a primal lockoor in prising means which render it inoperative when the door is in its locked position and theprimary lock is locked, said means being engaged by a movement of the door before the primary lock is locked and disengaged by a movement of the door after theprimary lock is unlocked. v a

18. The combination with a primary looking mechanism adapted to fasten a door in its locked position, of a recording lock comprising means to prevent the advance or retraction of the bolt of said recordinglock when the door is in its locked position and the primary lock is locked, said means being engaged by'a movement of the door before the primary lock is locked and disengaged by a movement of the door afterthe primary lockis unlocked.

19. The combination with a primary lock "and a recording lock both adapted to fasten a door in the same position, of means to revent the advance and retraction of the 01!; of the recording look when the Primary lock is locked.

20. The combination with a primary lock and a recording lock both adapted to fasten a door in the same osition, of means coaotive betweenthe bo t and keeper of the recordin r lock which render said bolt inoperative w 1en the-primary lock is lockeds 21. The combination with a primary lock adapted when operated to fasten a door in its locked position, of a recording lock also adapted to fasten the door in its locked position, said recording lock comprising means which render it inoperative when the door is in its locked position, said means bein engaged or disengaged by a movement to the 22. The combinaton with a primary lock in its. locked position, said recording lock comprising means which render it inoperag tive when the door is in its locked positio 23. The combination with a primary lock adapted when operated to fasten a door in pted when operated to its locked position, of a recording lock also adapted to fasten the door in its locked position, said recording lock comprising means which render it inoperative When the primary lock is locked said means being engagged and disengaged by a. movement of the 24. The combination with a prii'nery lock adapted when operated to fasten a door in its locked position, of a recording lock also adapted to fasten the door in its locked po sition', said recording lock comprising means which prevent the advance or retraction of its bolt when the door is in its locked posih nn u Hm: hY-"lTTlfi.W lOCk lS lOCkEd, said means being engaged and disengaged by a I CLARENGE V. DOYLE. Witnesses LOUISE ENDERLE, THOMAS A. HILL. 

